Drinking cup



FIG. 1 is a side view of a drinking cup showing our new design;

FIG. 2 is a top-front perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a top view thereof. 

CLAIM We claim the ornamental design for a drinking cup, as shown and described. 